IT 342 Exam 1 GMU Questions And
Answers | Guaranteed Pass!!!
What is Abstraction? CORRECT ANSWERS Handle very complex problems and
systems while also hiding the details from the user.
What is a batch? CORRECT ANSWERS A batch is a set of similar processes that are
group together and processed one after another to maximize system performance.
What is a batch OS? When is this OS best used? CORRECT ANSWERS An operating
system that uses some sort of batch processing.
Best for systems that do not require human interaction. They have humans send jobs
and the OS does the rest.
What is bootstrapping? CORRECT ANSWERS This occurs when the computer boots
up and the OS is loaded to the main memory of the system
What is cache? CORRECT ANSWERS Cache is very fast memory stored close to the
CPU to reduce time for functions that are used often.
What is Character user interface? (CUI) CORRECT ANSWERS All commands need to
be typed by the user to make the OS function. Different than a GUI, which uses
graphical interface.
What is a CPU? CORRECT ANSWERS Central Processing Unit; the brain of the
computer.
What is CPU-bound? CORRECT ANSWERS These a programs bound to the CPU that
require a lot of processing power to complete.
What is a distributed OS? CORRECT ANSWERS This is when several physical
processors are connected to allow large computational applications to be split up and
processed by different processors, making the task much faster to complete.
After each processor has finished his part of the work, they send it back to the main
processor to have it put back together
What is an operating system? CORRECT ANSWERS collection of software that
manages computer hardware resources to provide services.
What are the goals of an operating system? (3) CORRECT ANSWERS 1. Efficient use
of computer hardware
2. Provide the user with user friendliness
, 3. Hide complexity of computer hardware
What is an OS interface? CORRECT ANSWERS The way the user interacts with or
uses the operating system.
Usually CUI or GUI
What are the step of a booting process? CORRECT ANSWERS Power button on
computer
CPU pins are reset
registers in cpu change value
control unit of cpu jumps to BIOS
BIOS and POST are run
BIOS finds MBR
Boot loader is in the MBR
Boot loader loads OS from main memory
What are some functions the OS performs? CORRECT ANSWERS Makes list of
authorized users
MAke list of resources in system
List all processes running
Create processes
starts program execution
What are the OS classifications? (6 total) CORRECT ANSWERS Single user
Batch OS
Interactive OS
Multi programmed system
Time sharing OS
Real time system
What is a single user system? CORRECT ANSWERS Old, early 1950's, used punch
cards. One user at a time
What is an interactive system? CORRECT ANSWERS OS where the user can directly
interact with the operating system
What is a multi programmed system? CORRECT ANSWERS A system that can
perform multiple processes at one time by different parts of the system.
Answers | Guaranteed Pass!!!
What is Abstraction? CORRECT ANSWERS Handle very complex problems and
systems while also hiding the details from the user.
What is a batch? CORRECT ANSWERS A batch is a set of similar processes that are
group together and processed one after another to maximize system performance.
What is a batch OS? When is this OS best used? CORRECT ANSWERS An operating
system that uses some sort of batch processing.
Best for systems that do not require human interaction. They have humans send jobs
and the OS does the rest.
What is bootstrapping? CORRECT ANSWERS This occurs when the computer boots
up and the OS is loaded to the main memory of the system
What is cache? CORRECT ANSWERS Cache is very fast memory stored close to the
CPU to reduce time for functions that are used often.
What is Character user interface? (CUI) CORRECT ANSWERS All commands need to
be typed by the user to make the OS function. Different than a GUI, which uses
graphical interface.
What is a CPU? CORRECT ANSWERS Central Processing Unit; the brain of the
computer.
What is CPU-bound? CORRECT ANSWERS These a programs bound to the CPU that
require a lot of processing power to complete.
What is a distributed OS? CORRECT ANSWERS This is when several physical
processors are connected to allow large computational applications to be split up and
processed by different processors, making the task much faster to complete.
After each processor has finished his part of the work, they send it back to the main
processor to have it put back together
What is an operating system? CORRECT ANSWERS collection of software that
manages computer hardware resources to provide services.
What are the goals of an operating system? (3) CORRECT ANSWERS 1. Efficient use
of computer hardware
2. Provide the user with user friendliness
, 3. Hide complexity of computer hardware
What is an OS interface? CORRECT ANSWERS The way the user interacts with or
uses the operating system.
Usually CUI or GUI
What are the step of a booting process? CORRECT ANSWERS Power button on
computer
CPU pins are reset
registers in cpu change value
control unit of cpu jumps to BIOS
BIOS and POST are run
BIOS finds MBR
Boot loader is in the MBR
Boot loader loads OS from main memory
What are some functions the OS performs? CORRECT ANSWERS Makes list of
authorized users
MAke list of resources in system
List all processes running
Create processes
starts program execution
What are the OS classifications? (6 total) CORRECT ANSWERS Single user
Batch OS
Interactive OS
Multi programmed system
Time sharing OS
Real time system
What is a single user system? CORRECT ANSWERS Old, early 1950's, used punch
cards. One user at a time
What is an interactive system? CORRECT ANSWERS OS where the user can directly
interact with the operating system
What is a multi programmed system? CORRECT ANSWERS A system that can
perform multiple processes at one time by different parts of the system.
